4130 Alloy Bar

TW’s cold drawn seamless 4130 alloy steel bar, rod, and wire is a lighter weight, higher strength alternative to carbon steel. As the market leader in 4130 alloy steel, TW Metals delivers a full range of 4130 round bar.

Applications

  • Aerospace
  • Motorsports - chassis

Advantages

  • Excellent weldability
  • High yield strength
  • High ultimate tensile strength
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Thickness
Temper
Diameter

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Compare Name Description Manufacture Method Diameter Shape Specification
Name: 4130 MIL-S-6758 COND D4 - A3212 Description: .4375 DIA Manufacture Method: Air Melt Diameter: 0.4375 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3222 Description: 1.25 DIA Manufacture Method: Air Melt Diameter: 1.2500 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3220 Description: 1.00 DIA Manufacture Method: Air Melt Diameter: 1.0000 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3225 Description: 1.500 DIA Manufacture Method: Air Melt Diameter: 1.5000 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3213 Description: .500 DIA Manufacture Method: Air Melt Diameter: 0.5000 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3221 Description: 1.125 DIA Manufacture Method: Air Melt Diameter: 1.1250 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3231 Description: 2.25 DIA Manufacture Method: Air Melt Diameter: 2.2500 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3233 Description: 2.50 DIA Manufacture Method: Air Melt Diameter: 2.5000 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3236 Description: 3.00 DIA Manufacture Method: Air Melt Diameter: 3.0000 Shape: ROD/BAR ROUND Specification: AMS-S-6758
Name: 4130 MIL-S-6758 COND D4 - A3211 Description: .375 DIA Manufacture Method: Air Melt Diameter: 0.3750 Shape: ROD/BAR ROUND Specification: AMS-S-6758

Items 1-10 of 18 Products

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Alloy Bar PDF Download

Typical Chemical Properties

4130 Annealed Steel Bar, Rod & Wire

Minimum Properties

Tensile Strength, psi

81,200

Yield Strength, psi

52,200

Elongation

28.2%

Rockwell Hardness

B82

Chemistry

Iron (Fe)

97.3 - 98.22%

Carbon (C)

0.28 - 0.33%

Chromium (Cr)

0.8 - 1.1%

Manganese (Mn)

0.4 - 0.6%

Molybdenum (Mo)

0.15 - 0.25%

Phosphorus (P)

0.035% max

Sulphur (S)

0.04% max

Silicon (Si)

0.15 - 0.35%